Giving a little back with cover crops

August 2, 2015

Helen L. Montoya/San Antonio Express-News

5of6

When Nicholas Keel discovered high lead content in the soil around his Government Hill home, he removed the top 2 inches of soil and began planting cover crops. Now he has mustard greens sprouting. He will discard the plants and sow another cover crop in spring. Gardeners use a variety of plants as cover crops, usually to enrich nitrogen in the soil.

When Nicholas Keel discovered high lead content in the soil around his Government Hill home, he removed the top 2 inches of soil and began planting cover crops. Now he has mustard greens sprouting. He will discard the plants and sow another cover crop in spring. Gardeners use a variety of plants as cover crops, usually to enrich nitrogen in the soil.